ALSA: ice17xx: Constify strings and string arrays

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ice1712/wm8776.h b/sound/pci/ice1712/wm8776.h
index 414a3f6..93a2d69 100644
--- a/sound/pci/ice1712/wm8776.h
+++ b/sound/pci/ice1712/wm8776.h
@@ -187,7 +187,7 @@
 #define WM8776_FLAG_ALC		(1 << 4)
 
 struct snd_wm8776_ctl {
-	char *name;
+	const char *name;
 	snd_ctl_elem_type_t type;
 	const char *const enum_names[WM8776_ENUM_MAX];
 	const unsigned int *tlv;